How to change or reset your iPad's passcode, even if you don't remember what the passcode is

To reset or change your iPad's passcode, you can use the "Passcode" menu in your Settings app, or reset the entire device.

How to lock your iPad with a passcode, fingerprint, or facial scan, and make it nearly impenetrable to strangers

Before you lock your iPad, you should set up a security method. Depending on your iPad model, this can include Touch ID or Face ID.